Ivanhoe Lake, MT Weather Forecast
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Ivanhoe Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Chance of T-Storm | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear |
| Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 80°FHi: 27°C | Lo: 50°FLo: 10°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C | Hi: 86°FHi: 30°C | Lo: 55°FLo: 13°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C |
| POP: 40% | POP: 30% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 AM MDT Tue Aug 18 2026 

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Ivanhoe Lake Forecast Discussion
Issued: 404 AM MDT Tue Aug 18 2026
Discussion
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KEY MESSAGES:- Shower and thunderstorm activity will continue this afternoon.
- Ridge of high pressure Wednesday through Friday causing warming and drying.
- Disturbance this weekend causing active weather over the Northern Rockies
A disturbance will be moving through the Northern Rockies today. This feature will cause a few showers to develop across northwest Montana late this morning. This afternoon more storms will develop across northwest Montana and over...
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